Evoluent Vertical 4 Usb Ergonomic Mouse

Evoluent Vertical 4 Usb Ergonomic Mouse Silver . FEATURES:- Improved thumb rest - The thumb rest has been reshaped to provide even more comfort over earlier versions.- The bottom thumb button provides greatly extended functionality when used with the included driver.- Extended lip prevents rubbing - An extra wide lip along the bottom edge prevents the last finger from rubbing the desk.- Adjustable laser sensor - Pointer speed controls on the side allow convenient adjustment without even releasing your grip from the mouse.- Pointer speed indicators - Top mounted LEDs show through the chrome thumb rest to indicate selected pointer speed including extra low (XL), low (LO), MD (medium), to high (HI).- Lighted Evoluent logo - The logo is pure eye candy. The illumination turns off when the system is in sleep mode to conserve notebook battery power. System requirements:- Windows: Includes driver for Windows XP, Vista and Win 7 in 32/64 bit for programming all 6 buttons. The driver is not required. The VerticalMouse 4 still has basic functionality without it.- USB only, not compatible with PS2 adapters. May be compatible with some USB KVM switches but it is not guaranteed.- Mac: Basic functionality in OS X or newer without a driver- Linus: Basic functionality without a driver. tradeinn Techinn